package org.tigris.scarab.attribute;

/* ================================================================
 * Copyright (c) 2000-2002 CollabNet.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * 3. The end-user documentation included with the redistribution, if
 * any, must include the following acknowlegement: "This product includes
 * software developed by Collab.Net <http://www.Collab.Net/>."
 * Alternately, this acknowlegement may appear in the software itself, if
 * and wherever such third-party acknowlegements normally appear.
 * 
 * 4. The hosted project names must not be used to endorse or promote
 * products derived from this software without prior written
 * permission. For written permission, please contact info@collab.net.
 * 
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by many
 * individuals on behalf of Collab.Net.
 */ 

import org.tigris.scarab.om.AttributeValue;

/**
 *  This is a Bugzilla-style attribute. The result is the sum of all votes.
 *
 * @author <a href="mailto:fedor.karpelevitch@home.com">Fedor</a>
 * @version $Revision: 7461 $ $Date: 2003-03-25 17:57:55 +0100 (Tue, 25 Mar 2003) $
 */
public class TotalVotesAttribute extends AttributeValue
{
    public int getTotalVotes()
    {
        int votes = 0;
        //try
        //{
        if (getNumericValue() != null) 
        {
            votes = getNumericValue().intValue();            
        }
            /*
        }
        catch (Exception e)
        {
            // value was not set, so initialization of zero is ok.
        }
            */
        return votes;
    } 

    public void addVotes(int votes)
    {
        setNumericValue(new Integer(getTotalVotes()+votes));
    }

    public void addVote()
    {
        addVotes(1);
    }

    public void removeVotes(int votes)
    {
        setNumericValue(new Integer(getTotalVotes()-votes));
    }

    public void removeVote()
    {
        removeVotes(1);
    }

    // *******************************************************************
    // implement required methods, no resources are needed.

    public void init()
    {
    }

    public Object loadResources()
    {
        return null;
    }

    public void setResources(Object obj)
    {
    }
}
